EP1674156B1 - Method for preparing a catalyst for oxidation of methanol to formaldehyde - Google Patents

Method for preparing a catalyst for oxidation of methanol to formaldehyde Download PDF

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Publication number
EP1674156B1
EP1674156B1 EP05027591.6A EP05027591A EP1674156B1 EP 1674156 B1 EP1674156 B1 EP 1674156B1 EP 05027591 A EP05027591 A EP 05027591A EP 1674156 B1 EP1674156 B1 EP 1674156B1
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EP
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Prior art keywords
oxidation
catalyst
process according
temperatures
methanol
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EP05027591.6A
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German (de)
English (en)
French (fr)
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EP1674156A1 (en
Inventor
Esterino Conca
Carlo Rubini
Marcello Marchi
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Clariant Prodotti Italia SpA
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Sued Chemie Catalysts Italia SRL
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Priority to SI200531825T priority Critical patent/SI1674156T1/sl
Priority to PL05027591T priority patent/PL1674156T3/pl
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/24—Chromium, molybdenum or tungsten
    • B01J23/28—Molybdenum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/85—Chromium, molybdenum or tungsten
    • B01J23/88—Molybdenum
    • B01J23/881—Molybdenum and iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/002—Mixed oxides other than spinels, e.g. perovskite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/74—Iron group metals
    • B01J23/745—Iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/85—Chromium, molybdenum or tungsten
    • B01J23/88—Molybdenum
    • B01J23/887—Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/8871—Rare earth metals or actinides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/03—Precipitation; Co-precipitation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/04—Mixing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/12—Oxidising
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
    • C07C45/32—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
    • C07C45/37—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of >C—O—functional groups to >C=O groups
    • C07C45/38—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of >C—O—functional groups to >C=O groups being a primary hydroxyl group
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2235/00—Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties
    • B01J2235/15—X-ray diffraction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/55—Cylinders or rings

Definitions

  • the present invention relates to a method for preparing a catalyst for oxidation of methanol to formaldehyde.
  • Catalysts for the oxidation of methanol to formaldehyde comprise a Fe 2 (MoO 4 ) 3 /MoO 3 mixture in which the Mo/Fe ratio is comprised between 1.5 and 5, and are generally prepared according to a method which comprises the precipitation of the above catalytic mixture from an aqueous solution of a soluble ferric salt, such as FeCl 3 , Fe(NO 3 ) 3 and the like, mixed with a solution of an alkaline molybdate or of ammonium, subsequent dilution of the suspension, filtration and washing of the precipitate, its conversion into a slurry by agitation, drying of the slurry and subsequent shaping of the dried powder or of a paste thereof so as to obtain granules having a specific geometric shape, and calcination of the granules at temperatures generally from 450 to 550 °C.
  • a soluble ferric salt such as FeCl 3 , Fe(NO 3 ) 3 and the like
  • Precipitation is performed from solutions with relatively low pH values (comprised from 1 to 2 in the case of precipitation from ferric chloride solutions), at which there is a significant solubilization of iron molybdate.
  • GB-A-1 282 950 discloses a process for manufacturing gels containing iron and molybdenum by dry mixing a ferric compound and a molybdenum compound.
  • GB-A-1 191 143 discloses a method for preparing catalysts for a catalytic conversion of methanol into formaldehydes by mixing a dry iron containing component with a dry molybdenum-containing component.
  • a method has now been found unexpectedly for preparing a catalyst comprising Fe 2 (MoO 4 ) 3 /MoO 3 mixtures in which the Mo/Fe ratio is comprised from 1.5 to 5 and allows to avoid the discharge of mother liquors and/or wash water and thus does not have the problems of the prior art processes.
  • Another advantage of the method according to the invention resides in that it allows to obtain catalysts that do not contain anions of ferric salts such as chloride ions, which are always present, albeit in small amounts, in the catalysts prepared according to the methods of the prior art.
  • ferric salts such as chloride ions
  • the method according to the present invention comprises the reaction of iron in powder form suspended in water with molybdenum trioxide, followed by an oxidizing treatment with hydrogen peroxide or other oxidizing agent in a quantity equal to, or greater than, the quantity required to oxidize the ferrous ion to ferric ion and to oxidate molybdenum to the hexavalent state.
  • the oxidizing agent can be dosed during the reaction between iron and molybdenum oxide.
  • the Mo/Fe atomic ratio in the reaction is comprised from 1.5 to 5, preferably 2.5-3; the process is performed at temperatures comprised from about 20 °C and the boiling point of the mass (100 °C), preferably 60-80 °C.
  • the suspension of the precipitate is diluted and the mother liquors are separated and recycled; the precipitate is dried and the powder or a paste thereof is subjected to shaping to obtain granules having a specific geometric shape, particularly cylindrical granules provided with a through bore or granules having a three-lobed cross-section provided, at the lobes, with through bores parallel to the axis of the granule.
  • the granules are activated by calcination at temperatures from 450 to 600 °C, preferably from 480 to 580 °C.
  • the iron in powder form is preferably used in the form of microspheroidal particles with an average diameter of 40 to 150 microns.
  • the carbon content in the iron is generally lower than 0.15% by weight.
  • Elements such as for example nickel, copper, silicon and manganese can be present in quantities preferably lower than 1%.
  • Manganese is generally always present and can thus constitute a marker of the new process.
  • the hydrogen peroxide or equivalent oxidizers such as oxygen, organic peroxides or hydroperoxides are preferably used in excess with respect to the quantity needed for oxidation of the ferrous ion to ferric ion and to oxidate molybdenum to the hexavalent state.
  • the resulting catalyst thanks to the absence of impurities derived from the reagents used in the preparation processes of the prior art, has a constant performance for significantly long periods of time.
  • the performance of the catalyst can be improved further by adding cerium molybdate, with the cerium tri- or tetravalent, in a quantity from 0.05 to 10% by weight as cerium, preferably 0.1-5%.
  • Cerium molybdate in fact has the effect of lowering significantly the hot-spot temperature in the catalytic bed, thus increasing the stability of the catalytic bed and therefore its life.
  • cerium molybdate is performed by mixing, after decantation of the mother liquors, a precipitate obtained according to the method of the present invention and a precipitate of cerium molybdate obtained from a solution of a trivalent and/or tetravalent soluble cerium salt, such as for example cerium carbonate, mixed with a solution of a molybdate of alkali metals and/or ammonium (followed by washing in order to eliminate the extraneous ions); or from cerium carbonate and molybdenum trioxide in aqueous suspension, heated until the generation of CO 2 ceases; or with a method similar to the preceding one, by adding molybdenum trioxide and cerium carbonate directly to the mixture during the reaction between iron and molybdenum oxide.
  • a trivalent and/or tetravalent soluble cerium salt such as for example cerium carbonate
  • a solution of a molybdate of alkali metals and/or ammonium followeded by washing in
  • the angular interval used is 5° to 125° 2 theta with steps of 0.01° and an acquisition time of 15 seconds per step.
  • the extended description of the goniometer provides two 0.04-rad Soller slits, 1° divergence and antiscatter slits, and an 0.4-mm receiving slit.
  • the diffracted beam is further collected by a secondary graphite monochromator.
  • Both the catalyst containing cerium molybdate and the molybdate-free catalyst have a surface area of 1 to 7 m 2 /g, preferably 2-6 m 2 /g.
  • Methanol oxidation is performed according to known methods.
  • the gas mixtures contain methanol in a concentration from 6 to 10% by volume and oxygen in a concentration from 9 to 13% by volume, the remainder being inert gas such as for example nitrogen.
  • the reactor is of the bundle-tube type and the reaction heat is removed by a coolant liquid which circulates outside the pipes.
  • the linear velocity of the gases is 1-2 Nm/sec; the temperature of the bath is comprised from 250 to 320 °C.
  • the gas mixture is fed into the reactor at temperatures from 120 to 160 °C.
  • the pilot plant for the catalytic tests of the oxidation of methanol to formaldehyde is constituted by a tubular reactor immersed in a molten-salt bath.
  • the reactor is 1950 mm long and has an inside diameter of 20.4 mm.
  • the catalyst is located in the central part of the reactor so as to ensure maximum isothermicity.
  • the molten-salt bath is heated by means of electric immersion heaters and the temperature is controlled by a regulator.
  • the gases are introduced from the upper region of the reactor.
  • the air and nitrogen are dosed by mass-flow and the methanol is dosed by means of a constant-flow pump and sent first to an evaporator.
  • the flow at the exit from the reactor and the gases after the purge column are analyzed by gas chromatography.
  • the precipitate is filtered, dried, pelletized (after lubrication) in the form of a perforated cylinder, and activated in air at 500 °C for 4 hours.
  • Example 1 The preparation of Example 1 is repeated, adding to the reagent mass 7.1 g of cerium carbonate (42% Ce) and 4.6 g of MoO 3 ; the test conditions are the same as in Example 1.
  • the catalytic bed is constituted by two layers: an upper layer of 400 mm of ceramic rings, and a lower layer of 700 mm of catalyst.
  • the total flow-rate of the inlet gases is 1.5 Nm/sec (1765 Nl/hour).
  • the O 2 content of the mixture at inlet is approximately 9.5%.
  • Table 1 reports the results obtained by using the catalyst of Example 1; Table 2 reports the results obtained by using the catalyst of Example 2.
  • Table 1 Bath temperature °C Methanol at inlet % Methanol conversion % Formaldehyde yield % 250 6.03 94.74 87.79 255 6.01 96.75 89.92 260 6.03 98.06 91.43 265 6.03 98.67 91.85
  • Table 2 Bath temperature °C Methanol at inlet % Methanol conversion % Formaldehyde yield % 250 6.02 94.35 87.69 255 6.03 96.49 90.10 260 6.01 97.73 91.34 265 6.04 98.62 92.12

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
EP05027591.6A 2004-12-23 2005-12-16 Method for preparing a catalyst for oxidation of methanol to formaldehyde Expired - Lifetime EP1674156B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200531825T SI1674156T1 (sl) 2004-12-23 2005-12-16 Postopek za pripravo katalizatorja za oksidacijo metanola v formaldehid
PL05027591T PL1674156T3 (pl) 2004-12-23 2005-12-16 Sposób wytwarzania katalizatora do utleniania metanolu do formaldehydu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT002500A ITMI20042500A1 (it) 2004-12-23 2004-12-23 Processo per la preparazione di un catalizzatore per l'ossidazione del metanolo a formaldeide

Publications (2)

Publication Number Publication Date
EP1674156A1 EP1674156A1 (en) 2006-06-28
EP1674156B1 true EP1674156B1 (en) 2013-11-27

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EP05027591.6A Expired - Lifetime EP1674156B1 (en) 2004-12-23 2005-12-16 Method for preparing a catalyst for oxidation of methanol to formaldehyde

Country Status (19)

Country Link
US (1) US7572752B2 (it)
EP (1) EP1674156B1 (it)
JP (1) JP4813895B2 (it)
KR (1) KR101237889B1 (it)
CN (1) CN1792444B (it)
AR (1) AR052999A1 (it)
BR (1) BRPI0505592B1 (it)
CA (1) CA2530705C (it)
EG (1) EG24563A (it)
ES (1) ES2444369T3 (it)
IT (1) ITMI20042500A1 (it)
MY (1) MY142272A (it)
PL (1) PL1674156T3 (it)
PT (1) PT1674156E (it)
RU (1) RU2388536C2 (it)
SI (1) SI1674156T1 (it)
TW (1) TWI402101B (it)
UA (1) UA93480C2 (it)
ZA (1) ZA200510153B (it)

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CN102165286B (zh) * 2008-09-24 2014-09-03 亨斯迈石油化学有限责任公司 使用概率分布的反应器温度控制
IT1393523B1 (it) 2008-12-29 2012-04-27 Sud Chemie Catalysts Italia S R L Processo perfezionato per l'ossidazione su letto catalitico fisso del metanolo a formaldeide.
GB201014185D0 (en) 2010-08-25 2010-10-06 Univ Cardiff Catalyst, method of manufacture and use thereof
US9233863B2 (en) 2011-04-13 2016-01-12 Molycorp Minerals, Llc Rare earth removal of hydrated and hydroxyl species
RU2458738C1 (ru) * 2011-07-01 2012-08-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ивановский государственный химико-технологический университет" Способ получения катализатора окисления метанола до формальдегида
EP2781262B1 (en) 2013-03-22 2020-05-27 Clariant International Ltd Removable protective coating for the receipt of a dust free catalyst
GB2518274A (en) * 2013-07-09 2015-03-18 Johnson Matthey Plc Catalyst for aldehyde production
EP3113859A4 (en) 2014-03-07 2017-10-04 Secure Natural Resources LLC Cerium (iv) oxide with exceptional arsenic removal properties
US10675612B2 (en) * 2014-10-01 2020-06-09 Lg Chem, Ltd. Molybdenum oxide composite and preparation method therefor
RU2611419C1 (ru) * 2015-12-28 2017-02-22 Федеральное государственное бюджетное образовательное учреждение высшего образования "Ивановский государственный химико-технологический университет" (ИГХТУ) Способ получения катализатора окисления метанола до формальдегида
CN106943981A (zh) * 2017-05-04 2017-07-14 凯瑞环保科技股份有限公司 一种甲醇氧化用的设备
CN110893344B (zh) * 2018-09-13 2021-04-27 中国科学院大连化学物理研究所 一种甲醇氧化制甲醛铁钼催化剂及制备和应用
CN113019385A (zh) * 2019-12-09 2021-06-25 中国科学院大连化学物理研究所 一种甲醇氧化制甲醛铁钼催化剂及制备和应用
CN113173832B (zh) * 2020-10-23 2022-05-17 源创核新(北京)新材料科技有限公司 一种以烯烃和甲醇为原料合成1,3-二元醇的方法
CN112916019B (zh) * 2021-01-26 2022-02-11 西南化工研究设计院有限公司 一种核壳结构钼铁催化剂及制备和用途

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UA93480C2 (ru) 2011-02-25
PT1674156E (pt) 2014-02-24
RU2005140268A (ru) 2007-06-27
ITMI20042500A1 (it) 2005-03-23
CA2530705A1 (en) 2006-06-23
BRPI0505592B1 (pt) 2015-06-23
AR052999A1 (es) 2007-04-18
JP4813895B2 (ja) 2011-11-09
US20060142619A1 (en) 2006-06-29
MY142272A (en) 2010-11-15
CN1792444B (zh) 2011-07-13
PL1674156T3 (pl) 2014-09-30
CN1792444A (zh) 2006-06-28
RU2388536C2 (ru) 2010-05-10
US7572752B2 (en) 2009-08-11
TW200631656A (en) 2006-09-16
ES2444369T3 (es) 2014-02-24
ZA200510153B (en) 2006-11-29
KR20060073487A (ko) 2006-06-28
KR101237889B1 (ko) 2013-02-27
TWI402101B (zh) 2013-07-21
BRPI0505592A (pt) 2006-09-12
JP2006175434A (ja) 2006-07-06
EG24563A (en) 2009-10-27
SI1674156T1 (sl) 2014-03-31
CA2530705C (en) 2014-07-29
EP1674156A1 (en) 2006-06-28

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